Commonly used WebHosting Port numbers
Web:
HTTP (WWW-WebServer): 80
SSL: 443
FTP: 21
SFTP: 22
FTPs: 990
SSH: 22
MS
Email:
SMTP: 25
SMTP ALTERNATE: 26 & 587
SMTP SSL: 465
POP3: 110
POP3 SSL: 995
IMAP: 143
IMAP SSL: 993
Telnet: 23
DNS:
53: TCP & UDP DNS Domain Name Server
Database:
MSSQL: 1433, 1533
MySql: 3306
WebsitePanel:
HTTP: 9001
Enterprise Server: 9002
Server: 9003
cPanel/WHM:
cPanel: 2082
cPanel SSL: 2083
WHM (WebHost Manager): 2086
WHM SSL: 2087
WebMail: 2095
WebMail SSL: 2096
Parallels Plesk Panel:
HTTP: 8880
HTTPS: 8443
AutoInstaller: 8447
SqlAdmin: 8401
Smarter Tools:
SmarterMail (WebMail): 9998
SmarterStats: 9999
SmarterTrack: 9997 (Not default)
Others:
RDP (Remote Desktop Protocol): 4489